Package forming and filling machine



June 17, 1941.

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PACKAGE FoRNING AND FILLING MACHINE Filed Aug. 17. 1939 18 Sheets-Sheet 11 RNEY June 17, 1941. L L. sALFlsEaERG PACKAGE FORMING AND FILLING MACHINE Filed Aug. 17.' 195s 18 Sheets-Sheet l2v INVENTOR" JUIN? 17, 1941# l. L. sALFlsBERG 2,245,327 PACKAGE FORMING AND FILLING MACHINE I Filed Aug. 17. 1939 18 sheets-sheet 1s INVENTOR BY M Y M ATTORNEY jaime 74, 1941.`

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l y f/f m f 7 ym x39 157 X' f l.; sALFlsBERG PACKAGE FORMING AND FILLING MACHINE June 17, 1941.

Filed Aug. 17. 1959 18 Sheets-Sheet l5 June 17, 1941.

L. L. SALFISBERG PACKAGE FORMING4 AND FILLING MACHINE Filed Aug. 1'r,` 19:59 la sheets-sheet 1e June 17, 1941. L L. sALFlsBERG PACKAGE FORMING AND FILLING MACHINE Filed Aug. 17. 1939' 18 Sheets-Sheet 1'7 ATTQRNEY June 17, 19411 L.. 'L. SALFISBERG PACKAGE FORMING'v AND FILLING MACHINE Filed Aug?. 1v', 19:59 18 sheets-sheet 1s 7 mw N L Y e L ToRNEY Patented June 17, 1941 PACKAGE FORMING AND FHLING MACHINE I Leroy L. Salfisberg, South Orange, N. J., assignor to Evers-Lee Company, Newark, N. J., a corporation of Delaware Application Augustn, 1939,?seria1 No. 290,604

(ol. ca -3) 29 Claims.

This invention'relates in general to the simultaneous forming and filling of packages, and more particularly relates to the packaging or wrapping of substances c-apable of flowing, Vsuch as powder, granular material or small pieces of material.

size, either singly or-in bulk. 'Ihe invention contemplates the packaging or wrapping of the substances orv articles in thin sheet material, for example, paper, Cellophane, Plioi1m, metallic foil, and especially sheet material which itself is thermoplastic and can be softened by heat or has a thermoplastic or fusible coating so that'juxtaposed layers of the material can be fused or 'caused to adhere together by application of heat and pressure to form a seal.

One object of the invention is to provide a machine ofy the general character described which shall embody novel and improved features However, the invention is adapted for use in the packaging of any articles of suitable of construction whereby a package may be first v parti-ally formed by the sealing of two layers of material together, after which successively the partially formed package may be filled, closed, and have a cover or label applied thereto, in a continuous operation.

Another object is to provide such a machine wherein a plurality of packages may be formed, filled, sealed in a continuous chain, and in successive steps severed from each other and labeled.

A further object of the invention is to provide in such a machine a novel and improved method and means for feeding the packaging material whereby a strip of material may be fed step by step with each step supplying an amount sufficient to form -a single package.

A still further object is to provide in such a machine novel and improved means cooperating with said strip feeding means in supplying the strip of packaging material, and to seal the layers of the strips together to form the packages.

Another object is to provide novel and improved means cooperating with said strip feeding means and said sealing means for depositing vin the partially completed packages the sub- Other objects are to provide a machinewhich shall include a novel and improved method and combination and arrangement of the various strip feeding, package sealing, andlabel applying means, whereby packages can be autom-atically, quickly and relatively inexpensively formed, filled and labeled, and to obtain other advantages and results as will be brought out by the following description when read in conjunction With the accompanying drawings in which- Figure 1 is a front perspective view of a machine embodying my invention.

Figure 2 is a rear perspective view of the machine.

Figure 3 is a fragmentary front perspective -vlew of the upper portion of the machine on a somewhat larger scale and viewing it from the side opposite that from which Figure 1 is viewed.

Figure 4 is a fragmentary vfront perspective View of the lower portion of the machine.

Figure 5 is a rear perspective view of the upper portion of the machine, viewing the machine from the side opposite to that from which Figure 2 is viewed.

Figure is a fragmentary front elevational View of the package strip feedingmechanism.

Figure 6a is a schematic front elevationalview of vthe package strip feeding mechanism showing the parts in a different relation to that shown in Figure 6.

Figure 7 is a horizontal sectional view on the line l-l of Figure 6, viewing the feeding mechanism in a top plany view.

Figure 8 is a vertical sectional view on the line 8-8 of Figure 7.

Figure 9 is a vertical sectional view onthe line 9--9 of Figure 7 with portions broken away.

Figure 10 is an enlarged fragmentary vertical sectional view through the filling mechanism.

Figure 11 is a top plan view of the filling mechanism with portions broken away.

Figure l2 is a horizontal sectional view on the line I2-i2 of Figure 10.

Figure 13 is a fragmentary transverse'vertical sectional view on the line |3-I3 of Figure 12.

Figure 14 is a similar View on the line |4-I4 of Figure 12.

Figure 15 is a .vertical sectional view on the line |5-I5 of Figure 14.

Figure 16 is a top plan view of the package sealing mechanism taken approximately on `the line I 6-l6 of Figure 3, and showing the-sealing jawsopen.'

Figure 17 is a front elevational view of the sealing mechanism with portions broken away and shown in section.

Figure i8 is a view similar to Figure 16 showing the sealing jaws closed.

Figure 19 is a vertical sectional view on the line I9--I9 of Figure 18.

Figure 20 is an enlarged fragmentary transverse vertical sectional view through the sealing jaws and illustrating the depositing spout of the filling mechanism in front elevation, showing the first sealing operation on the package.

Figure 21 is a similar view showing the manner of filling the partially completed package.

Figure 22`is a face elevation of one of the sealing jaws viewed from the line 2222 of Figure 21.

Figure 23 is a horizontal sectional view on the line 23-23 of Figure 22.

Figure 24 is a side elevational view of the partially completed package viewed from the line 2I-2l of Figure 20.

Figure 25 isa horizontal sectional view on the line 25-25 of Figure 24.

Figure 26 is a horizontal sectional view on the line 26-26 of Figure 24.

Figure 27 is a top plan view of the label folding and applying mechanism viewed approximately from the line 21-21 of Figure 4.

Figure 28 is a vertical longitudinal sectional view on the line 28-28 of Figure 27.

Figure 29 is an enlarged fragmentary vertical sectional view on theline 29-29 of Figure 27.

Figure 30 is a fragmentary perspective view of one of the folding members.

Figures 31 to 35 inclusive are fragmentary vertical sectional views through the label folding and applying members showing the successive steps of folding and applying the label.

Figure 36 is a similar view showing the manner of depositing a label on the folding and applying members.

Figure 37 is a. fragmentary transverse sectional view through one edge of a completed and labeled package.

Figure 38 is a perspective view of the completed package.

Figure 39 is a horizontal sectional view of the auxiliary feeding mechanism for the filled packages viewed approximately on the line 39-39 of FiEU-ie 3.

Figure 40 is a side elevation of the mechanism shown in Figure 39 with portions broken away.

Figure 40a is a horizontal sectional view on the line Illa-40a of Figure 40.

Figure 4Gb is a fragmentary perspective view of portions of the strip guides.

Figure 41 is a fragmentary vertical sectional view through the lower part of the machine and showing the driving mechanism.

Figure 42 is a similar view partially in side elevation and with the parts shownin different rela'tionship.

Figure 43 is a horizontal sectional view on the line 43-43 of Figure 41.

Figure 44 is a similar View on the line M of Figure 41.

Figure 45 is a view similar to Figure 42 showing the parts in different positions from those shown in Figure 42.

Figure 46 is a transverse vertical sectional view on the line 46-46 of Figure 44, and

Figure 47 is a vertical sectional view on the line 41-41 of Figure 46.

Describing my method and machine in their broader aspects, two strips of suitable packaging material A are drawn step by step fromsuppl rolls B into juxtaposed or side by side relation by a feeding mechanism C.

At each step of movement the two strips A are sealed together by sealing mechanism D along their longitudinal edges and transversely to form a bag-like' receptacle having its mouth facing upwardly between the strip. Immediately thereafter the substance or articles to be packaged is deposited by a filling mechanism E into l the mouth of the partially formed package, whereupon the two strips with the partially formed package are fed downwardly and the mouth of the package is sealed by the mechanism D simultaneously with the partial formation of the next succeeding package as before described.

The package strip. that is the chain of packages so formed is pulled downwardly by an auxiliary feeding mechanism F to a severing mechanism G which successively separates the packages from each other or from the strip.

Prior to the severance of each package K from the strip, a label H is placed by a carrier I upon a label applying mechanism J. This mechanism J folds the label H intermediate its length about the lower edge of the package and secures the folded portion of the label to the package.

Thereafter, the labeled package (see Figure 38) is dropped by gravity upon a chute L which directs the packages successively to the upper reach of an endless conveyor belt M which passes o ver a table N' from which the packages may be t removed as desired or placed in cartons.

More specifically describing the invention, the machine includes a base O which 'is hollow and in which the power unit and control are mounted, the base having a top wall P in which are mounted spaced vertical posts or standards Q. Upon' the standards Q is mounted a top piece R which carries the packaging strip feeding mechanism C and the filling mechanism E.

The top piece R has laterally projecting arms I on which are journaled the supply rolls A for the packaging material strips which supply the strips A to the feeding mechanism C. 'I'his feeding mechanism includes a frame 2 which is secured to the front edge of the top piece R and includes side pieces l bolted to the top piece and a cross bar I which is a part of the top piece R.. On the side pieces 3 are iournaledzidler rollers 6 over which the respective strips A pass from the supply rollers B, and on the cross bar l are journaled other idler rollers 1, one between each roller 0 and a pair of guide rollers 8.

A yoke 9 which is mounted on a vertically reciprocable shaft III, has a strip pulling roller II disposed between the idler rollers 6 and 1 at each side of the frame 2. Each strip A of packaging material is led from the corresponding supply roll under the corresponding idler roller 8 over the corresponding pulling roller II, under the corresponding idler roller 1 and downwardly over the guide roller 8, the two strips being thus brought into juxtaposition or opposed side by side relation to each other.

The shaft Ill is reciprocable in a tubular standard I2 that is secured in the top P of the base of the machine, (see Figures 5 and 42). The shaft I0 extends downwardly through the top P of the base and carries a sleeve I3 slidable on the shaft and disposed between a compres-v sion spring Il and a fixed collar I5. The sleeve I3 is pivotaliy connected to one end of a pair of links I6 the other end of which is pivotally connected to one end of a lever I1 that is Journaled at I8 between its ends on'a horizontal 

